Optimal
Combination and Filtering for 7 T Phase Images

Images based on signal phase showed superior and
complementary contrast at 7 Tesla compared to magnitude images. However, due to
the strong RF inhomogeneity at 7 T and a lack of a body coil, it is difficult
to obtain sensitivity map for each individual array element. In this study, we
systematically compared the effects of different filter kernel sizes
(&#61555;) on the resulting phase images using 4 different combination and
filtering methods.These parameters result in optimized phase image quality at 7
T even for other resolution settings.